{
"subject": "If a photo is uploaded, it is the SAME person in that photo and nobody else: preserve the shape of the face, the drawing of the nose and the mouth, the colour and shape of the eyes, the eyebrows, the skin tone with its pores, freckles, marks and expression lines, the colour and cut of the hair, the apparent age and the gender. Do not make the face younger, do not slim it, do not narrow the nose, do not lighten the skin, do not erase under-eye shadows, moles or scars, and do not swap the face for a generic good-looking one: an ID photo that does not look like the person is refused at the counter. All that changes is the framing, the background, the light and the top. With no photo uploaded, create a fictional woman of about thirty five, face 100% original, light brown skin with visible pores and faint under-eye shadow, full natural eyebrows, dark brown eyes, dark brown straight hair pulled back with a few loose strands falling on both sides of the neck",
"document_rules": "Neutral expression, mouth closed and no smile, eyes wide open and looking straight into the lens, head straight and level, no tilt and no turn. The whole face shows: both ears visible, both eyebrows whole, and no strand of hair crossing the eyes or covering the forehead. No glasses, no cap, no hat, no head scarf, no headphones and no large earrings; nothing covers the chin, the neck or the jawline. Both shoulders show, square and at the same height, cut off by the bottom edge of the frame",
"wardrobe": "A plain crew-neck top in navy blue, cotton knit with a visible weave, no print, no writing, no logo and nothing around the neck; the top is dark on purpose, so the silhouette separates from the white background",
"action": "Facing the camera, shoulders square and relaxed, back straight, face with no expression and no tension in the jaw, breathing loose",
"scene": "A plain, even white background from edge to edge, with no gradient, no texture, no object, no frame and NO shadow at all cast behind the head, the neck or the shoulders - a shadow on the background is what gets an ID photo refused at the counter more than anything else",
"composition": "A square photo in exact 1:1 proportion, the 2 x 2 inch (51 x 51 mm) size used for the United States passport and visa, head centred across the width. The MEASURES are what get the photo accepted: the head, from the top of the hair to the tip of the chin, is between 1 inch and 1 3/8 inches, which is 50% to 69% of the height of the frame; the eye line sits between 56% and 69% of the height, counted from the bottom; the frame ends a little below the shoulder line. For the 35 x 45 mm size used in the United Kingdom and most of Europe, keep every other rule and make the head 32 to 36 mm tall, which is 71% to 80% of the height",
"camera": "Camera at eye level, straight on, portrait distance with a lens equivalent to 85 mm so the nose is not distorted and the face is not widened; sharp focus from the hair to the chin, no background blur, no wide angle and no selfie perspective",
"lighting": "A large, diffuse frontal light with a reflector below, covering the face evenly on both sides: no hard shadow, no side shadow along the nose, no marked shadow under the chin, no blown-out white on the forehead and no oily sheen. Two small, equal catchlights in the eyes, one in each",
"color_palette": "Pure white in the background, navy blue in the top, dark brown in the hair and natural, faithful skin tones; low saturation, medium contrast, neutral temperature and no colour cast",
"style": "Real ID studio photography, sharp and with no style at all: no filter, no beauty retouching, no skin smoothing, no vignette and no grain. It has to look like the photo taken in the booth, not a good-looking editorial portrait",
"materials": "Skin with pores and real texture, separated strands of hair at the temples, cotton knit with a visible weave, a matte white photographic paper background",
"details": "What separates this photo from a good-looking portrait are the measures and the absences: the head at 50% to 69% of the height in the square size, the eye line between 56% and 69% from the bottom, the white background without a single shadow, both ears and both eyebrows showing, the mouth closed and the head with no tilt. Preserve the real texture of the skin, the natural asymmetry of the face and the true colour of the skin: an ID photo exists to identify, and it is retouching that stops the identification",
"negative_prompt": "smile, open mouth, teeth showing, head tilted or turned to the side, looking away from the lens, eye closed or half closed, shadow cast on the background, grey or coloured background, gradient in the background, background blur, glasses, hat, cap, head scarf, headphones, large earrings, hair covering the forehead, the eyebrows or the ears, top of the head cut off by the edge, shoulder out of frame, smoothed skin, beauty retouching, a face made younger or slimmer, lightened skin, filter, vignette, grain, hard side light, oily sheen, wide angle distortion, selfie look, text, letters, numbers, watermark, frame, logos, real brands, deformed hands, likeness to a real famous person, AI artefacts"
}
How to use
An ID photo refused at the counter costs you the trip back, and it is refused nearly always for the same three things: a shadow on the background, a tilted head, or hair over an ear. Here you upload a selfie and get the photo to standard, with the measures the clerk checks. It works in ChatGPT, Gemini and NanoBanana.
1. Shoot straight on, in window light, with no glasses and your hair tied back. A photo from the side is not something the AI can fix: it invents the other half.
2. Do not touch the preservation block in subject. It is what stops the AI from handing back a good-looking face that is not yours.
3. Read document_rules before you generate: mouth closed, head straight, both ears and both eyebrows showing.
4. If your document asks for another head size, change the number in composition. Those percentages are what the counter measures.
5. Look at the background of the image that comes back. A shadow behind the head is the number one reason for refusal.
Tip: print it on photo paper. An ID photo on a phone screen is worth nothing at the counter.
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